<template>
  <div class="about">
     <div class="blockDiv">
        <div class="block"></div>
        <div class="block"></div>
        <div class="block"></div>
        <div class="block"></div>
        <div class="block"></div>
        <div class="block"></div>
        <div class="block"></div>
        <div class="block"></div>
        <div class="block"></div>
         <div class="block"></div>
        <div class="block"></div>
        <div class="block"></div>
        <div class="block"></div>
        <div class="block"></div>
        <div class="block"></div>
        <div class="block"></div>
        <div class="block"></div>
        <div class="block"></div>
         <div class="block"></div>
        <div class="block"></div>
        <div class="block"></div>
        <div class="block"></div>
        <div class="block"></div>
        <div class="block"></div>
        <div class="block"></div>
        <div class="block"></div>
        <div class="block"></div>
         <div class="block"></div>
        <div class="block"></div>
        <div class="block"></div>
        <div class="block"></div>
        <div class="block"></div>
        <div class="block"></div>
        <div class="block"></div>
        <div class="block"></div>
        <div class="block"></div>
    </div>


  </div>
</template>
<style lang="less" scoped>

.blockDiv{
  border: 1px solid red;
  position: absolute;
  bottom: 52px;
  top: 0;
  box-sizing: border-box;
    width: 100%;
    display:flex;
    flex-wrap: wrap;
    overflow: hidden;
}
.block{
    width: calc(calc(100% / 3) - 10px);
    margin:5px;
    height:50px;
    box-sizing: border-box;
    border:1px  solid #000;
    
    }
</style>